Description:
Using the spell checker in Calc to check a specific column of notes, I discovered that the spell checker will only use the English(US) language despite another language (English(Australian)) being selected for the spreadsheet. Previous versions of LibreOffice did not display this issue.

Steps to Reproduce:
1. Ensure the spreadsheet has a language other than English(US) configured (in my case English(Australian).
2. Select a range of cells (preferably a column) of text (comments, Notes, etc.).
3. Press F7 or select Tools - Spelling... from the menu.
4. Check the Text Language in the Spelling pop up.
5. change to the desired language and see if it sticks...

Actual Results:
The moment spelling resumes, the language immediately returns to English US.

Expected Results:
You get to check spelling in the language of choice.


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
In the Options - language settings - Languages, the language of the user interface has been preset to English(USA), while other language settings have been set to the system default, English(Australia). 

LibreOffice settings are:
~~~~~~~~~~~~~~~~~~~~~~~~~
Version: 7.1.0.3 / LibreOffice Community
Build ID: f6099ecf3d29644b5008cc8f48f42f4a40986e4c
CPU threads: 8; OS: Linux 5.4; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-GB
Flatpak
Calc: threaded

OpenGL info:
~~~~~~~~~~~~
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) UHD Graphics 620 (KBL GT2)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.0.8
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 20.0.8
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 20.0.8
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

The following are the details provided by the Linux Mint system report:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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System:    Host: pluto-lptp Kernel: 5.4.0-66-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 
           Desktop: Cinnamon 4.4.8 wm: muffin dm: LightDM Distro: Linux Mint 19.3 Tricia 
           base: Ubuntu 18.04 bionic 
Machine:   Type: Laptop System: LENOVO product: 81H7 v: 130-151KB serial: <filter> Chassis: 
           type: 10 v: 130-151KB serial: <filter> 
           Mobo: LENOVO model: LNVNB161216 v: WIN serial: <filter> UEFI: LENOVO v: 8QCN21WW(V1.09) 
           date: 12/30/2019 
Battery:   ID-1: BAT1 charge: 23.6 Wh condition: 28.8/30.6 Wh (94%) volts: 7.8/7.6 
           model: 0x43 0x50 0x54 0x2D 0x43 0x4F 0x PABAS0241231 serial: <filter> 
           status: Discharging 
CPU:       Topology: Quad Core model: Intel Core i7-8550U bits: 64 type: MT MCP arch: Kaby Lake 
           rev: A L2 cache: 8192 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 31999 
           Speed: 3817 MHz min/max: 400/4000 MHz Core speeds (MHz): 1: 3726 2: 3661 3: 3657 
           4: 3698 5: 3691 6: 3658 7: 3664 8: 3615 
Graphics:  Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 
           chip ID: 8086:5917 
           Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1366x768~60Hz 
           OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (KBL GT2) v: 4.6 Mesa 20.0.8 
           compat-v: 3.0 direct render: Yes 
Audio:     Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo driver: snd_hda_intel 
           v: kernel bus ID: 00:1f.3 chip ID: 8086:9d71 
           Sound Server: ALSA v: k5.4.0-66-generic 
Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Lenovo driver: r8169 
           v: kernel port: 4000 bus ID: 01:00.0 chip ID: 10ec:8136 
           IF: enp1s0 state: down mac: <filter> 
           Device-2: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter vendor: Lenovo 
           driver: rtl8821ce v: v5.5.2.1_35598.20191029 port: 3000 bus ID: 02:00.0 
           chip ID: 10ec:c821 
           IF: wlp2s0 state: up mac: <filter> 
Drives:    Local Storage: total: 931.51 GiB used: 695.40 GiB (74.7%) 
           ID-1: /dev/sda vendor: Western Digital model: WD10SPZX-24Z10 size: 931.51 GiB 
           speed: 6.0 Gb/s serial: <filter> 
Partition: ID-1: / size: 789.28 GiB used: 695.37 GiB (88.1%) fs: ext4 dev: /dev/sda5 
USB:       Hub: 1-0:1 info: Full speed (or root) Hub ports: 12 rev: 2.0 chip ID: 1d6b:0002 
           Device-1: 1-5:2 info: Chicony type: Video driver: uvcvideo rev: 2.0 chip ID: 04f2:b628 
           Device-2: 1-7:3 info: Realtek type: Bluetooth driver: btusb rev: 1.1 chip ID: 0bda:c024 
           Hub: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 3.0 chip ID: 1d6b:0003 
Sensors:   System Temperatures: cpu: 40.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list 
           1: deb [arch=amd64] https: //brave-browser-apt-release.s3.brave.com/ stable main
           Active apt repos in: /etc/apt/sources.list.d/google-earth-pro.list 
           1: deb [arch=amd64] http: //dl.google.com/linux/earth/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http: //mirror.internode.on.net/pub/linuxmint-packages tricia main upstream import backport
           2: deb http: //mirror.as24220.net/pub/ubuntu bionic main restricted universe multiverse
           3: deb http: //mirror.as24220.net/pub/ubuntu bionic-updates main restricted universe multiverse
           4: deb http: //mirror.as24220.net/pub/ubuntu bionic-backports main restricted universe multiverse
           5: deb http: //security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
           6: deb http: //archive.canonical.com/ubuntu/ bionic partner
           Active apt repos in: /etc/apt/sources.list.d/stebbins-handbrake-releases-bionic.list 
           1: deb http: //ppa.launchpad.net/stebbins/handbrake-releases/ubuntu bionic main
Info:      Processes: 267 Uptime: 1d 5h 06m Memory: 7.64 GiB used: 3.18 GiB (41.6%) Init: systemd 
           v: 237 runlevel: 5 Compilers: gcc: 7.5.0 alt: 7 Client: Unknown python3.6 client 
           inxi: 3.0.32 
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